CN102309460B - Pyridostigmine bromide odor masking orally disintegrating tablets and preparation method thereof - Google Patents
Pyridostigmine bromide odor masking orally disintegrating tablets and preparation method thereof Download PDFInfo
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- CN102309460B CN102309460B CN 201010221690 CN201010221690A CN102309460B CN 102309460 B CN102309460 B CN 102309460B CN 201010221690 CN201010221690 CN 201010221690 CN 201010221690 A CN201010221690 A CN 201010221690A CN 102309460 B CN102309460 B CN 102309460B
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- pyridostigmine bromide
- taste masking
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- pyridostigmine
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- VNYBTNPBYXSMOO-UHFFFAOYSA-M Pyridostigmine bromide Chemical compound [Br-].CN(C)C(=O)OC1=CC=C[N+](C)=C1 VNYBTNPBYXSMOO-UHFFFAOYSA-M 0.000 title claims abstract description 68
- 229960002151 pyridostigmine bromide Drugs 0.000 title claims abstract description 68
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Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
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Abstract
The invention relates to pyridostigmine bromide odor masking orally disintegrating tablets and a preparation method thereof. The tablets belong to orally disintegrating tablets, and the orally disintegrating tablets consist of pyridostigmine bromide, an odor masking agent, a filling agent, a disintegrating agent and a flavoring agent basically, can be prepared by a direct tablet compressing process or a wet granulation process, have good mouthfeel and are disintegrated for 20 to 45 seconds; and in the dissolution detection process, the average cumulative dissolution quantity in 0.1mol/L of hydrochloric acid medium within 5 minutes is more than 85 percent. The tablets have good mouthfeel and quick response, are quickly disintegrated and convenient to take, and are particularly suitable to be taken by the old, children and patients who suffer from dysphagia and are in special environments (such as an environment in which water is difficult to take). The preparation method does not have special requirements on equipment, and products have controllable quality and low cost, and are easy to produce industrially.
Description
Technical field
The present invention relates to a kind of new formulation of myasthenia gravis medicine pyridostigmine bromide, be specifically related to a kind of pyridostigmine bromide taste masking orally disintegrating tablet preparation with rapid release effect, good mouthfeel and preparation method thereof.
Background technology
Pyridostigmine bromide (Pyridostigmine Bromide, pyridostigmine bromide) this product is cholinesterase inhibitor, chemical name: 1-methyl-3-pyridone dimethyl carbamate, molecular formula: C
9H
13BrN
2O
2, molecular weight: 261.12.Pyridostigmine bromide can reversiblely be combined with acetylcholine esterase, endogenous acetylcholine is piled up in vivo, muscarinic and the excitation of nicotine sample choline cholinoceptor appear, in addition, nicotinic cholinergic receptor on the motor end plate there is direct excitation, and can promote motor nerve ending to discharge acetylcholine, excited smooth muscle, striped muscle are arranged and suppress cardiovascular effect, a little less than the effect than neostigmine, but more lasting, be mainly used in treating myasthenia gravis, also can be used for treatment operation venter posterior flatulence and urine retention.At present, the pyridostigmine bromide common formulations has injection, syrup and three kinds of preparations of coated tablet clinically.Specification: injection: 1mg/1ml, 5mg/1ml; Syrup: 12mg/1ml; Tablet: 60mg.Usage and consumption: myasthenia gravis, the adult: oral 60~120mg/ time, 3~4 times on the 1st.Be used for other treatment and be advisable with intramuscular injection, the 1mg onset is once measured with 4~6mg and is limited, and maximum dose is 0.6mg/kg per hour.
All there are some defectives in existing pyridostigmine bromide dosage form: injection inconvenience prolonged application with and produce pain during injection, reduced patient's compliance; Syrup transports and carries inconvenience; Sugar coated tablet then disintegrate is slow, and drug-eluting is slow, needs drinking-water and finishes drug administration process by swallowing act, give old man, child and have dysphagia patients to bring inconvenience, and diabetics is taken syrup and also there is potential risk in coated tablet.The exploitation good mouthfeel, disintegrate is rapid, rapid-action, carries, taking convenience, and the pyridostigmine bromide oral cavity disintegration tablet that can improve patient's compliance has important value for clinical application.
Oral cavity disintegration tablet is a kind of new medicinal preparation form, means that a kind of not need water (or a small amount of water) in the oral cavity be the tablet of disintegrate or dissolving.Oral cavity disintegration tablet has following advantage: this dosage form in the oral cavity fast disintegrate, good mouthfeel, easily swallow, non-stimulated to oral mucosa; This dosage form is rapid-action, can bring into play rapidly curative effect of medication; This dosage form need not water, can normally take under anhydrous condition, thereby convenient patient uses in the hydropenia situation such as go out; This dosage form only needs to finish drug administration process by very little swallowing act, is fit to old man, child or has the patient of dysphagia to take; This dosage form avoids liver sausage first pass effect, bioavailability high.
Therefore, be necessary to develop the pyridostigmine bromide oral cavity disintegration tablet, for clinical application provides more selection, satisfy the clinical application demand, bring into play better the pyridostigmine bromide curative effect, make drug use convenient, improve patient's medication compliance.The pyridostigmine bromide orally disintegrating tablet preparation has wide market application foreground.
But the pyridostigmine bromide bitter in the mouth is prepared into oral cavity disintegration tablet with it, need to solve sensory issues, and it is one of exploitation pyridostigmine bromide oral cavity disintegration tablet key technology that principal agent is carried out that taste masking and taste masking process.
Summary of the invention
The invention provides a kind of drug-eluting rapidly, the preparation method of the novel pyridostigmine bromide orally disintegrating tablet preparation of good mouthfeel, and provide pyridostigmine bromide carried out method and the technology that taste masking and taste masking are processed.
Technical solution of the present invention is as follows:
The invention provides a kind of serious symptom muscle weakness medicine pyridostigmine bromide orally disintegrating tablet preparation, with pyridostigmine bromide as principal agent, comprised the adjuvant on pyridostigmine bromide taste masking solid dispersion and the pharmaceutics, it is characterized in that: it is the solid dispersion that is prepared from take odor mask as carrier that described pyridostigmine bromide taste masking is processed; Acceptable adjuvant is water-soluble filler, disintegrating agent, correctives and lubricant on the described pharmaceutics.
The weight ratio that the present invention comprises consists of:
10 parts~40 parts of pyridostigmine bromide taste masking solid dispersion
20 parts~50 parts of water-soluble fillers
4 parts~20 parts of disintegrating agents
0.5 part~3.0 parts of correctivess
1 part~5 parts of lubricants
Pyridostigmine bromide of the present invention is processed through taste masking first, and odor mask is acrylic resin IV class (stomach dissolution type macromolecular material), and the odor mask consumption is in weight ratio, pyridostigmine bromide: odor mask=1: 1~4.
Taste masking of the present invention is processed and is adopted solid dispersions technique to comprise polishing, solvent evaporated method, spray drying method and freeze-drying.
When among the present invention medicine being carried out taste masking and process, need to add correctives and cover remaining bitterness, correctives is selected from one or more in aspartame, acesulfame potassium, sucralose, Hesperidin dihydrochalcone, the sweet peptide factor, fruity flavor or the Mint Essence.
Water-soluble filler of the present invention is one or more in lactose, sugar alcohols (mannitol, sorbitol, xylitol and erythrose) preferably; Disintegrating agent preferably two kinds in microcrystalline Cellulose, carboxymethyl starch sodium, low-substituted hydroxypropyl cellulose, cross-linking sodium carboxymethyl cellulose, crospolyvinylpyrrolidone and more than; One or more of the optional magnesium stearate of lubricant, micropowder silica gel, Pulvis Talci, Polyethylene Glycol apoplexy due to endogenous wind.
Oral cavity disintegration tablet of the present invention can prepare with direct powder compression or wet granulation technology.Reduce cost, equipment requirements is low, can realize suitability for industrialized production.(1) adopt direct powder compression to prepare the pyridostigmine bromide oral cavity disintegration tablet, the pyridostigmine bromide solid dispersion adds one or more in the filler, in the disintegrating agent two kinds and more than, in the correctives one or more and the lubricant mixing that sieves, direct compression and get final product.(2) adopt wet granulation technology to prepare the pyridostigmine bromide oral cavity disintegration tablet, the pyridostigmine bromide solid dispersion adds a kind of or several in the filler, in the disintegrating agent two kinds and more than, mixing sieves, distilled water soft material processed, 16~24 mesh sieves are granulated, 40~50 ℃ of dryings 0.5~2 hour, 16~24 mesh sieve granulate, add lubricant, mix homogeneously, tabletting and get final product.(3) adopt wet granulation technology to prepare the pyridostigmine bromide oral cavity disintegration tablet, the pyridostigmine bromide solid dispersion adds a kind of or several in the filler, two kinds and an above part in the disintegrating agent, mixing sieves, distilled water soft material processed, 16~24 mesh sieves are granulated, 40~50 ℃ of dryings 0.5~2 hour, 16~24 mesh sieve granulate, add the another part in lubricant and the disintegrating agent, mix homogeneously, tabletting and get final product.
The present invention adopts mouthfeel assessment method screening solid dispersion optimal drug and odor mask ratio: select 5 volunteers, get respectively solid dispersion an amount of (approximately containing medicine 20mg), put into the oral cavity; but normal activity during the pastille; but must not drink water, spue behind the 30s, the impression of immediate record buccal.Each sample inspection intervals 30min.When pyridostigmine bromide and odor mask ratio reach 1: 3 and be above, can cover the pyridostigmine bromide bitterness.The present invention has adopted the group characteristic absorption of infrared spectroscopy, has adopted simultaneously the fusing suction exothermic characteristic of melting point determination and differential scanning calorimetry to verify solid dispersion, and this several method has all been verified solid dispersion formation.It is 98.75% that the taste masking solid dispersion prepares yield.
The present invention has adopted the evaluation of many indexs that the pyridostigmine bromide orally disintegrating tablet preparation is carried out quality control: outward appearance and mouthfeel comprehensive grading, weight differential inspection, hardness test, disintegration, assay and dissolution in vitro test.
The comprehensive grading results such as table 1 pyridostigmine bromide oral cavity disintegration tablet outward appearance and mouthfeel
Comprehensive grading=outward appearance scoring+refrigerant sense scoring+dry sensation scoring+bitterness scoring
Carry out pharmacokinetics research in the body with pyridostigmine bromide orally disintegrating tablet preparation provided by the invention.Select 12 of healthy new zealand white rabbit, be divided into 2 groups, i.e. pyridostigmine bromide orally disintegrating tablet preparation group; Listing pyridostigmine bromide coated tablet group, 6 every group, the single dose trial design.The front fasting 12h that takes medicine, after the administration 0.25,0.5,1.0,1.5,2,2.5,3,4,5,6,8,10,12,24h is in rabbit ear edge venous blood sampling, and the centrifugal 10min of 3000rmp separates obtaining plasma sample, puts-80 ℃ of Refrigerator stores, and is to be measured.The intersection administration is got hematometry blood drug level with different time after two groups of administrations after 1 week, with DAS2.0 pharmacokinetics software data processing, and carries out statistical analysis.Adopt RPIC to measure the rabbit vivo medicine concentration, the method accurately and reliably, favorable reproducibility.At 0.02~2 μ g.mL
-1In the scope, drug level and peak area linear relationship are good, and in a few days, day to day precision is less than 2%, absolute recovery is 85.55% ± 8.7%, and relative recovery is 95.42% ± 1.92%.Pharmacokinetic in the rabbit body shows, it is 1 one-compartment model that pyridostigmine bromide oral cavity disintegration tablet and commercially available coated tablet pharmacokinetics all meet weight.The former Cmax is 1782ngmL
-1Be lower than commercially available prod (pyridostigmine bromide coated tablet), t1/2 is 3.136h, shorter than commercially available prod (t1/2 is 3.437h), AUC0-24 is that 1568.1ng.mL-1.h, AUC0-∝ are 1584.1ng.mL-1.h, all than commercially available prod (AUC0-24 is that 1470.1ng.mL-1.h, AUC0-∝ are 1527.7ng.mL-1.h) height, studies show that the M11 oral cavity disintegration tablet absorbs rapidly, the sustainable medicine that discharges more reposefully, bioavailability is higher.
Studies show that the comparatively fast onset of pyridostigmine bromide oral cavity disintegration tablet, bioavailability is high.
Advantage of the present invention is: pyridostigmine bromide is water soluble drug, bitter in the mouth, directly add correctives and can not shelter bitterness fully, mouthfeel is poor, add polyacrylic resin IV class and be prepared into taste masking solid dispersion powder, make medicine not stripping in the oral cavity, Fast Stripping in the gastric juice, the dispersibility of medicine can be improved when improving the medicine mouthfeel, the rendezvous problem of pyridostigmine bromide micronized particles can be avoided adopting merely; Select the rapidly dissolvings in mouth such as water-soluble filler mannitol, cool taste is little sweet, and disintegrate is affected almost without impact; Preferred two kinds and above good disintegrating agent produce synergism, shorten disintegration time; The adding of the correctives such as aspartame, fruity flavor, the remaining bitterness of energy masking agents improves mouthfeel.Oral cavity disintegration tablet good mouthfeel, the disintegrate of making is rapid, stripping is fast, taking convenience, improves patient's compliance.And preparation technology is simple and easy to control for this oral cavity disintegration tablet, is fit to very much industrialized great production.
The specific embodiment
Embodiment 1
The weight ratio of components of each component that contains in the prescription is:
7.5 parts of pyridostigmine bromides
7.5 parts of Eudragit E100
50 parts in mannitol
15 parts of microcrystalline Cellulose
5 parts of crospolyvinylpyrrolidone
2.5 parts of aspartames
5 parts of magnesium stearate
Preparation method:
Pyridostigmine bromide is crossed 80 mesh sieves, is added among the Eudragit E100 of melting mixing, the cooling eutectic is pulverized rapidly, screening 80~100 order powder, add other adjuvants such as mannitol, mix homogeneously, direct powder compression get sheet and heavily are 1000 of the oral cavity disintegration tablets of 200mg.
Result of the test:
Embodiment 2
The weight ratio of components of each component that contains in the prescription is:
7.5 parts of pyridostigmine bromides
30 parts of Eudragit E100
17.5 parts of lactose
20 parts of sorbitol
15 parts of carboxymethyl starch sodium
5 parts of low-substituted hydroxypropyl celluloses
1.5 parts of acesulfame potassiums
1.5 parts of Mint Essences
2 parts of Pulvis Talci
Preparation method:
Pyridostigmine bromide is crossed 80 mesh sieves, is added among the Eudragit E100 of melting mixing, the cooling eutectic is pulverized rapidly, screening 80~100 order powder, add the adjuvants (except Pulvis Talci and the Mint Essence) such as lactose, mixing, distilled water soft material processed, 24 mesh sieves are granulated, 40 ℃ of dryings, 20 mesh sieve granulate add Mint Essence and Pulvis Talci, and the mixing tabletting gets sheet and heavily is 1000 of the oral cavity disintegration tablets of 200mg.
Result of the test:
Embodiment 3
The weight ratio of components of each component that contains in the prescription is:
15 parts of pyridostigmine bromides
25 parts of Eudragit E100
30 parts of lactose
10 parts in mannitol
8 parts of carboxymethyl starch sodium
12 parts of cross-linking sodium carboxymethyl celluloses
1.6 parts of sucralose
2.4 parts of magnesium stearate
Preparation method:
Get Eudragit E100,90 parts of dissolve with ethanol solutions add the pyridostigmine bromide mix homogeneously, volatilize most of solvent, vacuum decompression is dry, pulverizes screening 80~100 order powder, add the adjuvants such as lactose, mix homogeneously, direct powder compression get sheet and heavily are 1000 of the oral cavity disintegration tablets of 250mg.
Result of the test:
Embodiment 4
The weight ratio of components of each component that contains in the prescription is:
3.5 parts of pyridostigmine bromides
10.5 parts of Eudragit EPO
25 parts in mannitol
12 parts of microcrystalline Cellulose
6 parts of low-substituted hydroxypropyl celluloses
0.5 part of aspartame
1 part in orange flavor essence
1 part of micropowder silica gel
Preparation method:
Get Eudragit EPO, 90 parts of dissolve with ethanol solutions, the dissolving of adding pyridostigmine bromide also is uniformly dispersed, volatilize most of solvent, vacuum decompression is dry, pulverize, screening 80~100 order powder add mannitol, a part of microcrystalline Cellulose and low-substituted hydroxypropyl cellulose, aspartame and orange flavor essence, mixing, distilled water soft material processed, 24 mesh sieves are granulated, 40 ℃ of dryings, 20 mesh sieve granulate, add micropowder silica gel and remaining part microcrystalline Cellulose and low-substituted hydroxypropyl cellulose, the mixing tabletting gets sheet and heavily is 1000 of the oral cavity disintegration tablets of 250mg.
Result of the test:
Embodiment 5
The weight ratio of components of each component that contains in the prescription is:
15 parts of pyridostigmine bromides
20 parts of Eudragit EPO
30 parts in mannitol
20 parts of lactose
16 parts of low-substituted hydroxypropyl celluloses
4 parts of crospolyvinylpyrrolidone
2 parts of sucralose
2.5 parts of Pulvis Talci
Preparation method:
Get Eudragit EPO, anhydrous alcohol solution, the dissolving of adding pyridostigmine bromide also is uniformly dispersed, volatilize most of solvent, vacuum decompression is dry, pulverizes screening 80~100 order powder, add lactose, mannitol, crospolyvinylpyrrolidone, low-substituted hydroxypropyl cellulose, sucralose and Pulvis Talci, mix homogeneously direct powder compression sheet heavily is 1000 of the oral cavity disintegration tablets of 300mg.
Result of the test:
Embodiment 6
The weight ratio of components of each component that contains in the prescription is:
15 parts of pyridostigmine bromides
25 parts of Eudragit EPO
40 parts of sorbitol
5 parts of microcrystalline Cellulose
10 parts of crospolyvinylpyrrolidone
1.5 parts of acesulfame potassiums
1.5 parts of sucralose
3 parts of magnesium stearate
Preparation method:
Get Eudragit EPO, anhydrous alcohol solution, the dissolving of adding pyridostigmine bromide also is uniformly dispersed, volatilize most of solvent, vacuum decompression is dry, pulverizes, screening 80~100 order powder add sorbitol, microcrystalline Cellulose, crospolyvinylpyrrolidone, acesulfame potassium and sucralose, mix homogeneously, distilled water soft material processed, 24 mesh sieves are granulated, 40 ℃ of dryings, 20 mesh sieve granulate, add magnesium stearate, the mixing tabletting gets sheet and heavily is 1000 of the oral cavity disintegration tablets of 300mg.
Result of the test:
Embodiment 7 (control experiment: directly the taste masking legal system is for oral cavity disintegration tablet)
The weight ratio of components of each component that contains in the prescription is:
10 parts of pyridostigmine bromides
20 parts of lactose
30 parts in mannitol
10 parts of microcrystalline Cellulose
6 parts of low-substituted hydroxypropyl celluloses
4 parts of crospolyvinylpyrrolidone
1 part of aspartame
1.3 parts of sucralose
0.7 part in orange flavor essence
1.6 parts of Pulvis Talci
Preparation method:
Get pyridostigmine bromide, mannitol, lactose, microcrystalline Cellulose, low-substituted hydroxypropyl cellulose, crospolyvinylpyrrolidone, sucralose, aspartame, orange flavor essence and Pulvis Talci, cross 100 mesh sieve micronizations, mix homogeneously, direct powder compression get sheet and heavily are 1000 of the oral cavity disintegration tablets of 300mg.
Result of the test:
Above test explanation, directly the taste masking method can not be covered medicine pyridostigmine bromide bitterness, and masking agents bitterness in various degree after processing through odor mask, affect hardly disintegration, all prescription disintegrations all qualified (in 1 minute), 5 minutes accumulation stripping quantities are greater than 85% in the dissolution test 0.1mol/L hydrochloric acid medium, and commercially available coated tablet accumulation stripping quantity is less than 10%, the pyridostigmine bromide Novel mouth disintegrating preparations good mouthfeel of development, can reach rapidly disintegrate after the administration, discharge the requirement of medicine.
Claims (6)
1. pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation is characterized in that this tablet is to be made by pyridostigmine bromide taste masking solid dispersion and other adjuvant by following weight ratio:
Pyridostigmine bromide taste masking solid dispersion comprises following component, and its weight consists of:
1 part of pyridostigmine bromide
1~4 part of acrylic resin IV
It is that pyridostigmine bromide is prepared into solid dispersion take acrylic resin IV as disperse medium that taste masking is processed.
2. pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation according to claim 1, the filler in the component is one or more in lactose, mannitol, sorbitol, the xylitol.
3. pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation according to claim 1, the disintegrating agent in the component be in microcrystalline Cellulose, carboxymethyl starch sodium, low-substituted hydroxypropyl cellulose, cross-linking sodium carboxymethyl cellulose, the crospolyvinylpyrrolidone two kinds and more than.
4. pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation according to claim 1, the correctives in the component is one or more in aspartame, acesulfame potassium, sucralose, Hesperidin dihydrochalcone, the sweet peptide factor, fruity flavor or the Mint Essence.
5. pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation according to claim 1, the lubricant in the component is one or more in magnesium stearate, micropowder silica gel, the Pulvis Talci.
6. the preparation method of pyridostigmine bromide taste masking oral rapidly disintegrating tablet preparation according to claim 1, it is characterized in that the method may further comprise the steps: (1) solid dispersions technique prepares pyridostigmine bromide taste masking solid dispersion, and preparation method is selected from polishing, solvent evaporated method, spray drying method and freeze-drying; (2) tabletting: tabletting behind direct powder compression or the drug moiety adjuvant mixing granulation, the A method is direct powder compression: with pyridostigmine bromide solid dispersion, water-soluble filler, disintegrating agent, correctives and mix lubricant, direct compression and get final product; The B method is with the pyridostigmine bromide solid dispersion, adds water-soluble filler, disintegrating agent and correctives, the mixing that sieves, and distilled water soft material processed, 16~24 mesh sieves are granulated, the granulate that sieves after the drying, adding lubricant, mix homogeneously, tabletting and get final product; The C method is that the pyridostigmine bromide solid dispersion is added a part in filler, the disintegrating agent and the correctives mixing that sieves, distilled water soft material processed, the granulation of 16~24 mesh sieves, granulate sieves after the drying, add another part disintegrating agent and lubricant, mix homogeneously, tabletting and get final product.
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